使用条件的好处：（三元）运算符 [英] Benefits of using the conditional ?: (ternary) operator

问题描述

有什么好处和弊端的：相对于标准的if-else语句运营商？最明显的莫过于：

What are the benefits and drawbacks of the ?: operator as opposed to the standard if-else statement. The obvious ones being:

条件：？运营商

• 短，直接价值的比较和作业打交道时更简洁


• 的似乎并不那么灵活的的if / else构造的

• Shorter and more concise when dealing with direct value comparisons and assignments
• Doesn't seem to be as flexible as the if/else construct

标准的if / else

• 可以应用在更多的情况下（如函数调用）


• 的往往过长的

• Can be applied to more situations (such as function calls)
• Often are unnecessarily long

可读性似乎为每个根据该语句而不同。一小会儿后，第一次被暴露在：运营商，我花了一些时间来消化它究竟是如何工作的。你会建议使用它只要有可能，或者坚持的if / else因为我与许多非程序员工作的？

Readability seems to vary for each depending on the statement. For a little while after first being exposed to the ?: operator, it took me some time to digest exactly how it worked. Would you recommend using it wherever possible, or sticking to if/else given that I work with many non-programmers?

推荐答案

我基本上会建议使用它，只有当产生的语句是非常短，并重新presents过的if / else相当于简洁一个显著上升不牺牲可读性。

I would basically recommend using it only when the resulting statement is extremely short and represents a significant increase in conciseness over the if/else equivalent without sacrificing readability.

很好的例子：

int result = Check() ? 1 : 0;

错误的例子：

int result = FirstCheck() ? 1 : SecondCheck() ? 1 : ThirdCheck() ? 1 : 0;

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